Apparatus for drying malt.



No. 657,788. Patented Sept. ".1900. W. H. PRINZ.

APPARATUS FOR DRYING MALT.

(Application filed Aug, 15, 1898. (No Model.

4 Sheets-Sheet l.

W'Limsses.

Tm: norms virzns co.. FHOYO-LITHQ, wAsHmorcm n. c.

No. 657,788. Patented Sept. ll, I900. W. H. PRINZ.

APPARATUS FOR DRYING MALT.

(Application filed Aug. 15, 1898.) (No Model.) 4 SheetsSheet 2.

Wfimsses.

THE "dams PEYERS co, Pnrnoumo. wAsmNumN. a. c.

No. 657,788. Patented Sept. ll, I900. W. H. PRINZ.

A BATUS FUR DRYING MALT.

pplication filed. Aug, 15, 1898.

4 Sheets-Sheet 3.

J wad No. 657,788. Patented Sept. ll, I900.

w. H. PBINZ.

APPARATUS FOR DRYING MALT.

(Application filed Aug. 15, 1898.)

(No Model.) 4 Sheets-Sheet 4.

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FFICE.

Urvrrnn STATES PATET 'WILLIAM H. PRINZ, OF AUSTIN, ILLINOIS, ASSIGNOR TO THE SALADIN PNEU- MATIC MALTING CONSTRUCTION COMPANY, OF CHICAGO, ILLINOIS.

APPARATUS FOR DRYING IVIALT.

SPECIFICATION forming part of Letters Patent N 0. 657,788, dated September 11, 1900.

Application filed August 15, 1898. Serial No. 688,622. (No model.)

To aZZ whom it may concern; Another feature of my invention consists Be it known that I, \VILLIAM H. PRINZ, a in a special form of hopper for said recepcitizen of the United States, residing at Austacles, which has greater capacity than the tin, in the county of Cook and State of Illiordinary hopper, thereby saving space, and 5 nois, have invented certain new and useful which can be automatically unloaded at small Improvements in Apparatus for Drying Malt; expense. and I do hereby declare the following to be a In the drawings, A indicates the lower or full, clear, and exact description of the invenheating chamber of the kiln; B, the furnace; tion, such as will enable others skilled in the O, the mixing-chamber above the furnace, to art to which it appertains to make and use the and D the drying-room. Said furnaceB coinsame. prisesa plurality of firing-cha m bers l,inclosed My invention relates to a novel construcwithin four walls and arched over, as at 2. tion in an apparatus for drying malt, the ob- Above the grate 3 and below the arch 2 the ject being to provide adevice of this descripside walls'are provided with openings 4, lead- I5 tion of simple and efficient construction and ing to chambers 5, arched over, as at 6. The

operation; and it consists in the features of end walls of said chambers 5 are provided construction and combinations of parts herewith openings controlled by blinds 7, which inafter fully described and claimed. form fresh-air inlets. The outer side walls In the accompanyingdrawings, illustrating of said chambers 5 are provided with open- 20 my invention, Figure 1 is a vertical longituings 8, leading to the chambers 9, which lead dinal section of an apparatus for drying malt to said mixing-chamber O. Blinds 10, fitted constructed in accordance with myinvention, in openings in the end walls of said chambers taken partially on the line 1 1 and partially 9, admit fresh air to said chambers. Thus the on the line 3 3 of Fig. 2. Fig. 2 is a vertical hot air in passing from the firing-chambers 25 transverse section of same on the line 2 2 of to the mixing-chamber takes a zigzag course, Fig. 1. Fig. 3 is a fragmentary vertical londuring which fresh air is mixed therewith. gitudinal section of same on the line 3 3 of The end walls of said chambers 1, 5, and 9 co- Fig. 2. Fig. 4 is a detail sectional view, on incide with the end walls of the furnace B, an enlarged scale, on the line 4 4 of Fig. 5. the side walls 11 of which terminate on a level 0 Fig. 5 is adetail sectional view on the line 5 5 with the floor 12, which surrounds the upper of Fig. 4. Fig. 6 is a fragmentary vertical end of said furnace and above which the air transverse section of a modified form of confrom said furnace is delivered. The end walls structionon the line 6 6 of Fig. 7. Fig. 7 is of said furnace are extended upwardly over a fragmentary vertical longitudinal section said floor 12 and extended lengthwise on 5 on the line 7 7 of Fig. 6. said floor, as at 13, to the end walls 14 of the One feature of my invention consists in building, thus dividing said floor12 into three providing what I term a mixing-furnace compartments, of which the middle one forms for a malt-drierthat is, a furnace in which said mixing-chamber (J. Said mixing-chamair is heated and which during its passage her 0 is closed at its upper end by means of. 40 through said furnace is mixed with cool air. a horizontal partition 15, mounted between Another feature of my invention consists said walls 13, adjacent their upperends, and in providing a further mixing-chamber above which is provided with valve-controlled opensaid furnace in which the hot and cold airare ings 16 at intervals. Supported upon said allowed to thoroughly mix before entering walls 13 is a hood 17, which is adapted to pre- 45 the drying-chamber. vent malt dumped from the drying-floors from Another feature of my invention consists falling on said partition 15 and leading it in so forming said mixing-chamber as to leave into the side compartments 18. Said walls spaces beside the same to form receptacles for 13 are provided with recesses 19 at intervals finished malt, thereby saving the construcalong their upper edges, which extend down mo 50 tion of an extra floor for said drier and the to said partition 15. Said recesses 19 form expense and space incidental thereto. passages through which the air is adapted to pass into the drying-room D. In each of said compartments 18 I provide a hopper 20, of oblong form, covering the entire area thereof. The walls of said hopper 20 are inclined as usual, but its bottom instead of terminating in one point forms a long trough, which is connected at intervals with a spiral conveyer 21 by means of spouts 22. In said bottom of said hopper are a plurality of right and left spiral conveyors 23, which convey the malt toward the spouts 22, said conveyors 23 being mounted on a shaft24, journaled in bearings in the end Walls of said hopper and receiving its motion from said conveyor 21 by means of pulleys 25 and 26 on both conveyorshafts and the belt 27 passing through openings in the fioor 12.

In Figs. 6 and 7 I have illustrated a slightlymodified form of mixing-furnace which is provided alternately with firing and mixing chambers, the firing'chambers 1 being less in height than the mixing-chambers 5, so as to leave passages 28 above said firing-chambers between the upper ends of the mixing-chambers. lhe dividing-Walls between the mixing and firing chambers are provided with openings 29 above said firing-chambers, thus causing the air to pass from the firing into the mixing chambers and thence into the spaces 28, from which it passes into the mixing- .chamber 0. By means of this construction I am enabled to provide both a sufficientlylarge mixing-chamber and hopper-floor without providing an extra floor, as heretofore, thus saving the cost of said extra floor and the extra height of building which would be required in consequence of said extra floor. I am also enabled to better regulate the temperature of the air admitted to the dryingchamber.

I claim as my invention a 1. In an apparatus for drying malt, the combination with a furnace having a firing-chamber mixing-chambers beside same through which the air from said firing-chamber passes means for admitting hot air to said mixingchambers to be mixed with fresh air, of a mixing-chamber above said furnace adapted to receive the hot and fresh air from said furnace and mixing-chambers and further mix the same, substantially as described.

v2. In an apparatus for drying malt, the combination with a furnace, and a floor surrounding it adjacent its upper end, of walls dividing'said floor into a plurality of compartments, one of which communicates with said furnace and is covered and the remainder of which are provided with hoppers adapted to receive finished malt, and means for unloading said hoppers comprising spiral conveyers in the bottom thereof adapted to convey the malt to spouts leading from said hoppers, substantially as described.

3. In an apparatus for drying malt, the combination with a furnace, of a floor surrounding the upper end of same, partitions dividing said floor into a plurality of compartments, one of said compartments being adapt ed to receive hot air from said furnace and distribute same, and the remainder being adapted to serve as malt-receptacles, substan tially as described.

4. In an apparatus for drying malt, the com bination with a furnace, of a floor surrounding the upper end of same, partitions dividing said floor into a plurality of compart ments, one of said compartments being adapted to receive hot air from said furnace and distribute same, and the remaining compartments being adapted to contain hoppers, substantially as described.

5. In an apparatus for drying malt, the combination with a furnace, of a floor surrounding the upper end of same, partitions dividing said fioor into a plurality of compartments, one of said compartments being adaptved to receive hot air from said furnace and distribute same, and the remaining compartments being adapted to contain hoppers, each of said hoppers covering the entire area of the compartment in which it is situated, and provided in its bottom with conveyers, and with spouts leading therefrom, said conveyers being adapted to convey the malt to said spputs to discharge the same.

6. In an apparatus for drying malt, a floor divided into a plurality of chambers, constituting hot-air and malt-receiving chambers respectively, said malt-receiving chambers being adapted to contain one hopper each covering the entire area thereof and provided in its bottom with right and left spiral conveyers adapted to convey the malt toward spouts connecting said hopper with devices for transporting the malt from said drier, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM H. PRINZ.

Witnesses:

RUDOLPH WM. Lorrz,

ERWIN J. L012. 

